Necator americanus
Necator americanus
Necator americanus (pronounced: nek-ay-tor amer-i-can-us) is a species of hookworm that is one of the primary causes of hookworm infection in humans. The name is derived from the Latin necator, meaning "killer", and americanus, referring to its discovery in the Americas.
Etymology
The term Necator americanus was first coined in the early 20th century. The genus name Necator is derived from Latin, meaning "killer", which refers to the parasitic nature of the species. The species name americanus indicates the region where the hookworm was first discovered and studied, the Americas.
Description
Necator americanus is a small, cylindrical worm, typically measuring 5-11mm in length. The anterior end of the worm is curved dorsally, giving it a hook-like appearance, hence the common name "hookworm". The mouth of the worm is surrounded by cutting plates, which it uses to attach to the intestinal wall of its host.
Life Cycle
The life cycle of Necator americanus involves several stages, including egg, four larval stages, and adult. The adult worms live in the small intestine of the host, where they lay eggs that are passed in the feces. The eggs hatch in the soil, releasing larvae that can penetrate the skin of a new host.
Pathology
Infection with Necator americanus can lead to a disease known as hookworm disease, which is characterized by anemia, protein deficiency, and, in severe cases, developmental delays in children. The worm feeds on the blood of its host, leading to these symptoms.
Treatment
Treatment for Necator americanus infection typically involves anthelmintic drugs, such as albendazole or mebendazole. These drugs work by killing the adult worms in the intestine.
Prevention
Prevention of Necator americanus infection involves proper sanitation practices, including the use of latrines and wearing shoes in areas where the worm is endemic.
Related Terms
External links
- Medical encyclopedia article on Necator americanus
- Wikipedia's article - Necator americanus
This WikiMD dictionary article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski